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sh: Move platform smp ops in to their own structure.

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This cribs the MIPS plat_smp_ops approach for wrapping up the platform
ops. This will allow for mixing and matching different ops on the same
platform in the future.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2010-03-30 12:38:01 +09:00
parent 4a6feab0ee
commit 3366e3585f
9 changed files with 95 additions and 23 deletions
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20
arch/sh/kernel/cpu/sh4a/smp-shx3.c
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@@ -1,7 +1,7 @@
/*
* SH-X3 SMP
*
* Copyright (C) 2007 - 2008 Paul Mundt
* Copyright (C) 2007 - 2010 Paul Mundt
* Copyright (C) 2007 Magnus Damm
*
* This file is subject to the terms and conditions of the GNU General Public
@@ -37,7 +37,7 @@ static irqreturn_t ipi_interrupt_handler(int irq, void *arg)
return IRQ_HANDLED;
}
void __init plat_smp_setup(void)
static void shx3_smp_setup(void)
{
unsigned int cpu = 0;
int i, num;
@@ -63,7 +63,7 @@ void __init plat_smp_setup(void)
printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
}
void __init plat_prepare_cpus(unsigned int max_cpus)
static void shx3_prepare_cpus(unsigned int max_cpus)
{
int i;
@@ -76,7 +76,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus)
IRQF_DISABLED | IRQF_PERCPU, "IPI", (void *)(long)i);
}
void plat_start_cpu(unsigned int cpu, unsigned long entry_point)
static void shx3_start_cpu(unsigned int cpu, unsigned long entry_point)
{
if (__in_29bit_mode())
__raw_writel(entry_point, RESET_REG(cpu));
@@ -93,12 +93,12 @@ void plat_start_cpu(unsigned int cpu, unsigned long entry_point)
__raw_writel(STBCR_RESET | STBCR_LTSLP, STBCR_REG(cpu));
}
int plat_smp_processor_id(void)
static unsigned int shx3_smp_processor_id(void)
{
return __raw_readl(0xff000048); /* CPIDR */
}
void plat_send_ipi(unsigned int cpu, unsigned int message)
static void shx3_send_ipi(unsigned int cpu, unsigned int message)
{
unsigned long addr = 0xfe410070 + (cpu * 4);
@@ -106,3 +106,11 @@ void plat_send_ipi(unsigned int cpu, unsigned int message)
__raw_writel(1 << (message << 2), addr); /* C0INTICI..CnINTICI */
}
struct plat_smp_ops shx3_smp_ops = {
.smp_setup = shx3_smp_setup,
.prepare_cpus = shx3_prepare_cpus,
.start_cpu = shx3_start_cpu,
.smp_processor_id = shx3_smp_processor_id,
.send_ipi = shx3_send_ipi,
};